[U-Boot] beaglxm/bootz: kernel boot fail due to align err: cache handling issues?

[Robert Nelson]

On Fri, Aug 23, 2013 at 9:21 AM, Nishanth Menon <nm at ti.com> wrote:
> Hi,
> Noticed an interesting behavior where adding a dcache flush kernel boot
> fail due to unaligned-accesses seems to go away.
> Full details: http://pastebin.com/kVBRWsbE
> Without dcache flush being added to my uenvcmd:
>
> Kernel image @ 0x80200000 [ 0x000000 - 0x3e2690 ]
> data abort
>
> MAYBE you should read doc/README.arm-unaligned-accesses
>
> pc : [<9ff6f6b4>]          lr : [<9ff6ef6c>]
> sp : 9fefaaf0  ip : 9fefe8ec     fp : 00000000
> r10: 9ffa6544  r9 : 9ffa5e5c     r8 : 9fefaf30
> r7 : 0f800000  r6 : 9ffa6544     r5 : 9ffa65b0  r4 : 9ffa65b4
> r3 : 00000049  r2 : 00000010     r1 : 00000000  r0 : 0f800000
> Flags: nZCv  IRQs off  FIQs off  Mode SVC_32
> Resetting CPU ...
>
> With dcache flush being added to my uenvcmd: complete boot
>
>
> I think something of the form was highlighted here:
> http://marc.info/?l=u-boot&m=137276534624656&w=2
>
> Not sure if there was any conclusion to the effect.

There may still be an underline bug, but the "bootz ${loadaddr}" issue
i showed in that post was fixed very late in the v2013.07, i forget
the commit, it may have been a day or two right before.

So looking at your pastebin.com log: "U-Boot
2013.07-rc2-00044-g1d28a6a" it might be worthwhile to re-test with
v2013.07 final, specially since your using bootz...

(I've already been shipping a bootz enabled u-boot v2013.07 for the
beagle-xm to end users)..

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/